17,241,525 views | Krishna Sudhir • TED-Ed
How do cigarettes affect the body?
Cigarettes aren't good for us. That's hardly news -- we've known about the dangers of smoking for decades. But how exactly do cigarettes harm us, and can our bodies recover if we stop? Krishna Sudhir details what happens when we smoke -- and when we quit. [TED-Ed Animation by TED-Ed].